Last updated: August 22, 2025
In December, the average temperature in Mons-lez-Liege, Belgium hovers around 5°C (40°F). Expect a chilly range with minimums dipping to -5°C (23°F) and highs reaching up to 14°C (58°F). With 121 mm (4.8 in) of precipitation spread over 20 days, it's advisable to carry an umbrella. The atmosphere is quite damp, boasting an average humidity of 92%—perfect for those cozy indoor activities!
In December in Mons-lez-Liege, the average temperature is 5°C (40°F), with maximums reaching up to 14°C (58°F) and minimums dropping as low as -5°C (23°F). It's advisable to pack warm clothing and be prepared for chilly conditions while exploring the area.
In Mons-lez-Liege in December, the total precipitation amount is 121 mm (4.8 in) over the course of 20 days.
In Mons-lez-Liege in December, humidity is 92%. With an average temperature of 5°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and potentially affecting your enjoyment of the local sights.
In Mons-lez-Liege in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Mons-lez-Liege.
UV Risk Categories
Weather in Mons-lez-Liege varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mons-lez-Liege, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 85 mm (3.3 inches) | 91% | low |
| February Weather | 4°C (40°F) | 81 mm (3.2 inches) | 90% | moderate |
| March Weather | 7°C (44°F) | 94 mm (3.7 inches) | 87% | moderate |
| April Weather | 9°C (49°F) | 42 mm (1.7 inches) | 84% | moderate |
| May Weather | 13°C (56°F) | 71 mm (2.8 inches) | 77% | very high |
| June Weather | 18°C (64°F) | 83 mm (3.3 inches) | 74% | very high |
| July Weather | 18°C (65°F) | 86 mm (3.4 inches) | 72% | very high |
| August Weather | 18°C (65°F) | 80 mm (3.1 inches) | 71% | high |
| September Weather | 15°C (59°F) | 70 mm (2.7 inches) | 81% | high |
| October Weather | 11°C (53°F) | 91 mm (3.6 inches) | 88% | moderate |
| November Weather | 6°C (44°F) | 65 mm (2.6 inches) | 91% | low |
| December Weather | 5°C (40°F) | 121 mm (4.8 inches) | 92% | low |